Description & Operation

Switch monitor test uses PIDs to check operation of certain switches (and related circuits) that do not set DTCs.

1. 1)  Turn ignition on. Connect NGS scan tool. See EQUIPMENT HOOKUP under SELF-DIAGNOSTIC SYSTEM . Using NGS scan tool, enter PID/DATA MONITOR AND RECORD function.
2. 2)  Select PIDs for switches in question. See SWITCH TESTING  table. Operate switch as described in table. If switch does not operate as described, proceed to circuit test suggested in table.
   SWITCH TESTING
   
   

   Switch (PID)	Test Condition	PID Value	Circuit Test
   A/C Selector Switch (ACS)	A/C Selector Switch In A/C Position	ON	**
   A/C Selector Switch (ACS)	In Other Than A/C Position	OFF	CIRCUIT TEST KM
   Blower Motor Switch (BLR SW)	Blower Switch In Positions 3 Or 4	ON	**
   Blower Motor Switch (BLR SW)	Blower Switch In Positions 1 Or 2	OFF	CIRCUIT TEST KM
   Brake On/Off Switch (STP SW)	Brake Pedal Depressed	ON	**
   Brake On/Off Switch (STP SW)	Brake Pedal Release	OFF	CIRCUIT TEST FD
   Daytime Running Lights (DRL SW)	Parking Brake Released, Key On	ON	**
   Daytime Running Lights (DRL SW)	Parking Brake Set, Key On	OFF	**
   Headlight Switch (HDL SW)	Headlights On	ON	**
   Headlight Switch (HDL SW)	Headlights Off	OFF	CIRCUIT TEST DI
   Idle Switch (IDL SW)	Gas Pedal Depressed	OFF	**
   Idle Switch (IDL SW)	Gas Pedal Released	ON	CIRCUIT TEST DH
   Park/Neutral Position Switch (NL SW)	Shifter In Neutral	ON	**
   Park/Neutral Position Switch (NL SW)	Shifter In Any Gear	OFF	CIRCUIT TEST TA
   Clutch Pedal Position (CPP SW)	Clutch Pedal Depressed	ON	**
   Clutch Pedal Position (CPP SW)	Clutch Pedal Released	OFF	CIRCUIT TEST TA
   Rear Window Defrost (DEF SW)	Rear Defroster Switch On	ON	**
   Rear Window Defrost (DEF SW)	Rear Defroster Switch On	OFF	CIRCUIT TEST DI